Coastal wetland in South China： Degradation trends, causes and protection countermeasures

There are abundant coastal wetlands in South China and their main characters are the tidal flats, mangroves and coral reefs. In this paper, the status quo of coastal wetlands in South China is introduced and their degradation trends in the last decades are analyzed based on the existing literatures and information. Their degradation trends are characterized by reduction of coastal wetlands＇ area, pollution of seawater environment, degeneration of ecological environment, sharp decrease of biodiversity in the wetlands and so on. At the same time, the causes resulting in the above-mentioned degradations are discussed, mainly concluding imperfect systems of management and legislation, deficient property and assessment systems of the wetlands, weak consciousness of protecting coastal wetlands, shortage of basic study and backward management level and so on. Some countermeasures are put forward for the sake of a sustainable use of the coastal wetlands of South China, mainly including establishing and perfecting administrative and legal systems for the coastal wetlands, developing the study on assessment of coastal wetland, heightening the consciousness of public participation, and strengthening scientific research and establishment of wetland nature reserves.     

淮河流域行蓄洪区综合开发构想

淮河流域洪涝灾害频繁，使沿淮行蓄洪区处于一种“建设-淹没-重建-再淹没”的不良循环中，对淮河水利工程建设和行蓄洪区发展均较为不利。通过将行蓄洪区还原为湿地、生态移民等途径，发展湿地水产养殖、畜牧养殖、旅游观光等附加值较高的“湿地型产业经济”，将是一种可供参考、探讨的方案。     

野鸭湖湿地博物馆

日前，华北地区第一座湿地博物馆——野鸭湖湿地博物馆在北京市延庆县建成开馆，并开始接待游人参观。这座湿地博物馆位于延庆县野鸭湖自然保护区内，建筑面积3650平方米，整体建筑俯瞰似飞鸟凌空。     

杨庄煤矿塌陷湖水资源勘查计算

通过对塌陷湖的实地勘查,运用水均衡原理,计算出该湖可供开采的水资源,认为该塌陷湖可作为淮北市供水后备水源地之一。     

基于案例分析的人工湿地尾水处理技术进展

人工湿地技术综合了基质、微生物和植物对水中污染物的协同去除机制,广泛用于提升污水厂尾水水质,是一种绿色低耗的生态修复技术.本文汇总了以人工湿地为核心技术的众多城镇污水处理厂尾水资源化案例,对人工湿地技术的不同工艺运行方式和优缺点进行了分类归纳,提出依据不同水质特征量身设计复合人工湿地工艺的策略,为污水处理厂尾水的资源化利用提供参考.     

江汉平原(四湖地区)和洞庭湖区湿地的分类与分布特征

采用成因、水文、植被、土质和地貌特征等,从系、类、属、种和亚种５个层次对江汉－洞庭平原的湿地进行了系统分类．划分了河流湿地、湖泊湿地和人工湿地３个湿地生态系统;河流水面、湖泊水面、人工水面、河流沼泽、湖泊沼泽和水田６个湿地类．还划分了９个湿地属、１８个湿地种和９个湿地亚种．利用卫星遥感影像对湿地进行了调查和制图,分析了湿地的分布特征,讨论了自然因素和人为因素对湿地分布的影响．     

栾川南泥湖钼矿床含矿裂隙研究

东秦岭钼矿带是世界上重要的钼矿带之一,带内分布着几个超大型钼矿床,南泥湖钼矿床就是其中之一．南泥湖钼矿床含矿裂隙含脉率、含脉密度及含矿裂隙产状研究结果表明：１．钼矿化受裂隙和含脉率控制;２．南泥湖钼矿床含矿裂隙具有明显的方向性,走向主要为ＮＥ—ＮＮＥ向;３．含脉率越高含矿性越好,含矿裂隙的发育程度对蚀变岩分布范围和交代程度具有明显的影响．